US6187074B1 - Coated fertilizer granules - Google Patents
Coated fertilizer granules Download PDFInfo
- Publication number
- US6187074B1 US6187074B1 US08/973,463 US97346397A US6187074B1 US 6187074 B1 US6187074 B1 US 6187074B1 US 97346397 A US97346397 A US 97346397A US 6187074 B1 US6187074 B1 US 6187074B1
- Authority
- US
- United States
- Prior art keywords
- copolymer
- weight
- fertilizer granules
- amount
- carboxyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
Definitions
- the present invention relates to novel coated fertilizer granules which are coated with a carboxyl-carrying ethylene copolymer in which the carboxyl groups may also be in the form of their alkali metal, alkaline earth metal or ammonium salts, the carboxyl-carrying ethylene copolymer being composed of
- the present invention furthermore relates to a process for their preparation and to fertilizer application methods in which the novel coated fertilizer granules are used.
- U.S. Pat. No. 4,851,027 discloses the use of aqueous dispersions which contain a polymer having a glass transition temperature of 60° C. or more for coating fertilizer granules.
- EP-A-337 298 recommends the use of copolymers of ethylene, vinyl chloride and at least one monomer selected from the group consisting of acrylamide, methacrylamide, N-methylolacrylamide, N-butoxymethacrylamides, acrylic acid, glycidyl methacrylate and hydroxyethyl acrylate as coating polymers for coating fertilizer granules.
- Japanese Preliminary Published Application 71 698/87 discloses coated fertilizer granules which are prepared by applying a solution or a dispersion of an ethylene/acrylic acid copolymer in which the solvent or the continuous phase is an organic solvent, for example a hydrocarbon.
- coated fertilizer granules have to meet a variety of requirements with regard to simple and economical preparation and their performance characteristics.
- the polymers should be capable of being applied to the fertilizer granules without the use of organic solvents. Furthermore, the amount of polymer required for coating the granules should be very small in order to achieve an adequate slow-release effect.
- the coated fertilizer granules should show no tendency to stick together, in particular at temperatures as usually occur during their storage or during transport, without special measures being necessary in this respect.
- the coating polymers must not be excessively hard and brittle, since the coats would otherwise be damaged or even flake off when the coated fertilizer granules are subjected to mechanical stress as occurs, for example, during transfer or broadcasting on the arable land.
- Coated fertilizer granules which meet these complex requirements have not been disclosed to date. Only the non-prior-published German Patent Applications with the file reference P 43 43 176.2 describe coated fertilizer granules which contain a crop protection agent and whose coat consists of a polymer which is composed of from 75 to 90% by weight of ethylene and from 10 to 35 25% by weight of an ⁇ -olefinically unsaturated mono- or dicarboxylic acid.
- Starting fertilizer granules which are suitable for coating are generally known granules of organic or mineral fertilizers, as described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, 5th edition 1987, volume A 10, pages 323 to 431 (cf. in particular sections 2.1 and 4).
- single-nutrient and multinutrient fertilizers which contain nutrients such as nitrogen, potassium or phosphorus in the form of their salts, individually or, if required, in combination, are suitable.
- nutrients such as nitrogen, potassium or phosphorus in the form of their salts, individually or, if required, in combination.
- NP, NK, PK and NPK fertilizers such as calcium ammonium nitrate, ammonium sulfate, ammonium nitrate sulfate and urea.
- starting fertilizer granules which contain salts of Mg, Fe, Mn, Cu, Zu, Mo and/or B in minor amounts, ie. usually in amounts of from 0.5 to 5% by weight, in addition to the stated main components.
- the longest average diameter of the starting fertilizer granules is in general from 0.5 to 10, preferably from 0.7 to 5, mm. Their bulk density is usually from 0.5 to 1.3 kg/l.
- the coating consists of a carboxyl-carrying ethylene copolymer in which some or all of the carboxyl groups may also be in the form of their salts, preferably the zinc, alkali metal, alkaline earth metal or ammonium salts, the sodium or ammonium salts being particularly preferred.
- ammonium salts are those which are derived from ammonia, a mona-, di- or trialkanolamine, each having 2 to 18, preferably 2 to 6 carbon atoms in the hydroxyalkyl radical, or mixtures of the stated alkanolamines, or a dialkylmonoalkanolamine having 2 to 8 carbon atoms in the alkyl radical and 2 to 8 carbon atoms in the hydroxyalkyl radical, or mixtures thereof.
- these are diethanolamine, triethanolamine, 2-amino-2-methylpropan-1-ol and dimethylethanolamine.
- % of the carboxyl groups are in the form of their salts.
- the carboxyl-carrying ethylene copolymer is composed of
- Particularly suitable monomers (b) are acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid and itaconic acid and mixtures of these acids.
- the carboxyl-carrying ethylene copolymers preferably have a melt flow index (MFI) of from 1 to 25, particularly preferably from 8 to 15 (measured at 160° C. and 325 kp).
- MFI melt flow index
- the MFI indicates the amount of polymer melt, in grams, which can be forced, at a certain temperature and in a certain time, through a nozzle of certain dimensions when a certain force (load) is applied.
- the melt flow indices (MFI units) are determined similarly to the standards ASTM D 1238-65 T, ISO R 1133-1696 (E) or DIN 53 735 (1970), which are identical to one another.
- the carboxyl-carrying ethylene copolymers preferably have a melting range whose final melting point (T FM ) is above 80° C., preferably above 110° C.
- T FM is in general not higher than 200° C.
- the T FM can be determined, for example, by the differential scanning calorimetry (DSC) method, the procedure of DIN 53765 usually being employed.
- the carboxyl-carrying ethylene copolymers furthermore preferably have a glass transition temperature (T G ) of less than 50° C., preferably from ⁇ 20 to +20° C., and no glass transition temperature above 50° C.
- T G glass transition temperature
- the T G is likewise usually determined by the DSC method according to DIN 53765.
- the proportion of carboxyl-carrying ethylene copolymer in the total amount of the coated fertilizer granules is in general from 0.5 to 15, preferably from 2 to 10, % by weight.
- novel coated fertilizer granules are generally prepared by applying an aqueous solution or an aqueous dispersion of the carboxyl-carrying ethylene copolymer to starting fertilizer granules.
- aqueous dispersions examples include the aqueous dispersions of ethylene copolymer waxes, which dispersions are described in DE-A-34 20 168, which is hereby fully incorporated by reference.
- the aqueous dispersions preferably contain from 5 to 45, preferably from 10 to 30, % by weight of the carboxyl-carrying ethylene copolymers in dispersed form.
- Substances which control the release of the fertilizers may furthermore be added to the solutions or dispersions.
- These are in particular substances such as lignin, starch and celluloses.
- the amount thereof is, for example, from 0.1 to 5, preferably from 0.1 to 3, % by weight, based on the coating substance.
- solutions or dispersions of the carboxyl-carrying ethylene copolymers are advantageously applied by spraying on at in general from 10 to 110° C.
- a fluidized bed which is produced by fluidizing the starting fertilizer granules by means of a fluidizing gas is sprayed with the solutions or dispersions at from 10 to 110° C., preferably from 30 to 70° C. After the solutions or dispersions have been sprayed on, the fluidized bed is generally maintained until the solvent or the dispersing medium has evaporated.
- powdered solids such as talc, SiO 2 , Al 2 O 3 or TiO 2 , after the coating of the granules with the carboxyl-carrying ethylene copolymers.
- coated fertilizer granules contain no effective amounts of active ingredients for crop protection, for example fungicidal active ingredients.
- the coated fertilizer granules if required together with nitrification inhibitors or growth regulators, are applied by conventional methods to the arable land, where they release the fertilizer over a relatively long period in a form available to plants.
- the fertilizer granules are distinguished in particular by the fact that they show comparatively little tendency to stick together and cake, even at elevated temperatures, and their coat are insensitive to mechanical stresses as typically encountered during transfer and transport.
- the fertilizer granules were fluidized by means of preheated air and heated to the desired temperature.
- the particular aqueous polymer dispersions were sprayed by means of nozzles present in the apparatuses, and the granules were thus coated with a polymer film.
- the spray rate was chosen so that superficial dissolution of the fertilizer was avoided.
- the product was dried for a few minutes in the fluidized bed.
- composition of the fertilizer granules used is indicated by the combinations of numbers stated in parentheses in the Examples:
- the fertilizer Nitrophoska® Per Stamm (15+5+20+2) thus contains nitrogen, phosphorus, potassium and magnesium in the same ratio as a fertilizer mixture comprising 15 parts of N, 5 parts of P 2 O 5 , 20 parts of K 2 O and 2 parts of MgO.
- Fertilizer granules type Nitrophoska ® Per Stamm (15 + 5 + 20 + 2) produced by BASF amount 3860 g Polymer dispersion type wax dispersion Poligen ® WE3 containing 25% by weight of an ethylene/acrylic acid copolymer of 20% by weight acrylic acid and 80% by weight of ethylene, 3.68% by weight of ammonia solution (25% strength by weight), 0.20% by weight of Na 2 S 2 O 5 and 71.32% by weight of water
- T G 0° C.
- T FM 115° C. amount 560 g + 140 g of water Process temperature 47° C. Process time 60 min Amount of coat, based on finished product: 3.5% N leaching rate after 24 h: 4.8% after 7 d: 31.1%
- Fertilizer granules type granulated diammonium phosphate (DAP 18 + 46) from Int. Ore and Fertilizer Belgium S.A., Brussels amount 4700 g Polymer dispersion type as in Example 1 amount 1200 g + 300 g of water Process temperature 42° C. Process time 60 min Amount of coat, based on finished product: 6% N leaching rate after 24 h: 13.5% after 7 d: 50.1%
- Fertilizer granules type Nitrophoska ® Per Stamm (15 + 5 + 20 + 2) produced by BASF amount 1850 g
- Fertilizer granules type Nitrophoska ® Per Stamm (15 + 5 + 20 + 2) produced by BASF amount 1850 g
- Fertilizer granules type Nitrophoska Per Stamm (12 + 12 + 17 + 2) produced by BASF amount 3487 g Polymer dispersion type aqueous dispersion containing 38% by weight of a polyethylene having a molecular weight of about 18,000 D (Poligen PE from BASF) T G ⁇ 80° C. T FM > 100° C. amount 513 g Process temperature 67° C. Process time 25 min Amount of coat, based on finished product: 5.5% N leaching rate after 24 h: 100%
- Fertilizer granules type Nitrophoska Per Stamm (15 + 5 + 20 + 2) produced by BASF amount 1850 g
- Fertilizer granules type Nitrophoska Per Stamm (15 + 5 + 20 + 2) produced by BASF amount 4000 g
- Process temperature 69° C. Process time The product sticks together after a short time, experiment was terminated
- Fertilizer granules type granulated urea from Agrimont, Italy amount 2080 g Polymer dispersion type aqueous dispersion containing 50% by weight of a copolymer of 29% of styrene and 71% of 1,3-butadiene (Butonal ® LS 104 from BASF) amount 415 g Process temperature 46° C. Process time 50 min Amount of coat, based on finished product: 10% N leaching rate after 24 h: 100%
- Fertilizer granules type granulated urea from Agrimont, Italy amount 2550 g Polymer dispersion type aqueous dispersion containing 45% by weight of a copolymer of 34% of 1,3-butadiene, 61% of styrene, 3.5% of acrylic acid and 1.5% of acrylamide (Styrofan ® DS 2306 from BASF) amount 1000 g Process temperature 45° C. Process time 85 min Amount of coat, based on finished product: 15% N leaching rate after 24 h: 100%
- a fluidized-bed apparatus having a base area of 520 cm 2 and a hole diameter of 2.7 mm was used in this Example.
- the flow rate of the fluidizing gas was 2000 m 3 (S.T.P.)/h and the flow rate of the nozzle gas was 38 m 3 (S.T.P.)/h.
- samples were taken as soon as the applied amount of coat was 2.5%, 3.0%, 4.0% and, finally, 5.0%.
- Fertilizer granules type Nitrophoska ® Per Stamm (15 + 5 + 20 + 2) produced by BASF amount 46,000 g Polymer dispersion type as in Example 1 amount 9200 g of dispersion in total and 6130 g of water Process temperature 40° C. Process time 70 min Amount of coat, 2.5% 3.0% 4.0% 5.0% based on finished product: N leaching rate after 24 h: 24.0% 14.5% 3.0% 1.8% after 7 d: 68.8% 52.3% 31.8% 21.0%
- the T G and T FM were determined by DSC according to DIN 53765.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Glanulating (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Fertilizer granules | type | Nitrophoska ® Perfekt |
(15 + 5 + 20 + 2) | ||
produced by BASF | ||
amount | 3860 g | |
Polymer dispersion | type | wax dispersion Poligen ® WE3 |
containing 25% by weight of an | ||
ethylene/acrylic acid copolymer of | ||
20% by weight acrylic acid and 80% by | ||
weight of ethylene, 3.68% by weight | ||
of ammonia solution (25% strength by | ||
weight), 0.20% by weight of Na2S2O5 | ||
and 71.32% by weight of water | ||
TG = 0° C. | ||
TFM = 115° C. | ||
amount | 560 g + 140 g of water | |
Process temperature | 47° C. | |
Process time | 60 min |
Amount of coat, based on finished product: 3.5% |
N leaching rate | after 24 h: | 4.8% |
after 7 d: | 31.1% | |
Fertilizer granules | type | granulated diammonium phosphate (DAP |
18 + 46) from Int. Ore and Fertilizer | ||
Belgium S.A., Brussels | ||
amount | 4700 g | |
Polymer dispersion | type | as in Example 1 |
amount | 1200 g + 300 g of water | |
Process temperature | 42° C. | |
Process time | 60 min |
Amount of coat, based on finished product: 6% |
N leaching rate | after 24 h: | 13.5% |
after 7 d: | 50.1% | |
Fertilizer granules | type | granulated urea from Agrimont, Italy |
amount | 2850 g | |
Polymer dispersion | type | as in Example 1 |
amount | 600 g | |
Process temperature | 45° C. | |
Process time | 55 min |
Amount of coat, based on finished product: 5% |
N leaching rate | after 24 h: | 14.0% |
after 7 d: | 47.8% | |
Fertilizer granules | type | urea-containing NPK fertilizer |
(16 + 10 + 19 + 2) with 35% of urea, | ||
produced at BASF | ||
amount | 3800 g | |
Polymer dispersion | type | as in Example 1 |
amount | 800 g | |
Process temperature | 45° C. | |
Process time | 82 min |
Amount of coat, based on finished product: 5% |
N leaching rate | after 24 h: | 4.6% |
after 3 d: | 14.5% | |
Fertilizer granules | type | Nitrophoska ® Perfekt |
(15 + 5 + 20 + 2) produced by | ||
BASF | ||
amount | 1850 g | |
Polymer dispersion | type | aqueous dispersion containing 50% by |
weight of a copolymer of styrene | ||
acrylonitriie and acrylic acid | ||
(Styrofan ® 120 D from BASF) | ||
amount | 300 g | |
Process temperature | 38° C. | |
Process time | 53 min |
Amount of coat, based on finished product: 15% |
N leaching rate | after 24 h: | 100% (coat flakes off) |
Fertilizer granules | type | Nitrophoska ® Perfekt |
(15 + 5 + 20 + 2) produced by | ||
BASF | ||
amount | 1850 g | |
Polymer dispersion | type | aqueous dispersion containing 40% by |
weight of a copolymer of 60% of | ||
methyl methacrylate, 30% of n-butyl | ||
acrylate and 10% of methacrylic acid | ||
(Acronal ® A 969 from BASF) | ||
amount | 375 g | |
Process temperature | 38° C. | |
Process time | 46 min |
Amount of coat, based on finished product: 15% |
N leaching rate | after 24 h: | 100% (coat flakes off) |
Fertilizer granules | type | Nitrophoska Perfekt |
(12 + 12 + 17 + 2) produced by | ||
BASF | ||
amount | 3487 g | |
Polymer dispersion | type | aqueous dispersion containing 38% by |
weight of a polyethylene having a | ||
molecular weight of about 18,000 D | ||
(Poligen PE from BASF) | ||
TG = −80° C. | ||
TFM > 100° C. | ||
amount | 513 g | |
Process temperature | 67° C. | |
Process time | 25 min |
Amount of coat, based on finished product: 5.5% |
N leaching rate | after 24 h: | 100% |
Fertilizer granules | type | Nitrophoska Perfekt |
(15 + 5 + 20 + 2) produced by | ||
BASF | ||
amount | 1850 g | |
Polymer dispersion | type | aqueous dispersion containing 45% by |
weight of a copolymer based on | ||
styrene and butyl acrylate (Acronal | ||
168 D from BASF) | ||
amount | 334 g | |
Process temperature | 40° C. | |
Process time | 50 min |
Amount of coat, based on finished product: 15% |
N leaching rate | after 24 h: | 100% |
Fertilizer granules | type | Nitrophoska Perfekt |
(15 + 5 + 20 + 2) produced by | ||
BASF | ||
amount | 4000 g | |
Polymer dispersion | type | aqueous dispersion containing 37% by |
weight of a copolymer based on | ||
styrene and butyl acrylate (Acronal | ||
168 D from BASF) | ||
amount | 545 g | |
Process temperature | 69° C. | |
Process time | The product sticks together after a | |
short time, experiment was terminated | ||
Fertilizer granules | type | granulated urea from Agrimont, Italy |
amount | 2080 g | |
Polymer dispersion | type | aqueous dispersion containing 50% by |
weight of a copolymer of 29% of | ||
styrene and 71% of 1,3-butadiene | ||
(Butonal ® LS 104 from BASF) | ||
amount | 415 g | |
Process temperature | 46° C. | |
Process time | 50 min |
Amount of coat, based on finished product: 10% |
N leaching rate | after 24 h: | 100% |
Fertilizer granules | type | granulated urea from Agrimont, Italy |
amount | 2550 g | |
Polymer dispersion | type | aqueous dispersion containing 45% by |
weight of a copolymer of 34% of | ||
1,3-butadiene, 61% of styrene, 3.5% | ||
of acrylic acid and 1.5% of | ||
acrylamide (Styrofan ® DS 2306 from | ||
BASF) | ||
amount | 1000 g | |
Process temperature | 45° C. | |
Process time | 85 min |
Amount of coat, based on finished product: 15% |
N leaching rate | after 24 h: | 100% |
Fertilizer granules | type | Nitrophoska ® Perfekt (15 + 5 + 20 + 2) |
produced by BASF | ||
amount | 46,000 g | |
Polymer dispersion | type | as in Example 1 |
amount | 9200 g of dispersion in total and | |
6130 g of water | ||
Process temperature | 40° C. | |
Process time | 70 min |
Amount of coat, | 2.5% | 3.0% | 4.0% | 5.0% | |
based on finished | |||||
product: | |||||
N leaching rate | after 24 h: | 24.0% | 14.5% | 3.0% | 1.8% |
after 7 d: | 68.8% | 52.3% | 31.8% | 21.0% | |
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19521502A DE19521502A1 (en) | 1995-06-13 | 1995-06-13 | Enveloped fertilizer granules |
DE19521502 | 1995-06-13 | ||
PCT/EP1996/002390 WO1996041779A1 (en) | 1995-06-13 | 1996-06-03 | Encapsulated fertiliser granulates |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/662,634 Continuation US6309439B1 (en) | 1995-06-13 | 2000-09-15 | Coated fertilizer granules |
Publications (1)
Publication Number | Publication Date |
---|---|
US6187074B1 true US6187074B1 (en) | 2001-02-13 |
Family
ID=7764277
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/973,463 Expired - Fee Related US6187074B1 (en) | 1995-06-13 | 1996-06-03 | Coated fertilizer granules |
US09/662,634 Expired - Lifetime US6309439B1 (en) | 1995-06-13 | 2000-09-15 | Coated fertilizer granules |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/662,634 Expired - Lifetime US6309439B1 (en) | 1995-06-13 | 2000-09-15 | Coated fertilizer granules |
Country Status (20)
Country | Link |
---|---|
US (2) | US6187074B1 (en) |
EP (1) | EP0832053B1 (en) |
JP (1) | JPH11507617A (en) |
KR (1) | KR100426922B1 (en) |
CN (1) | CN1100027C (en) |
AT (1) | ATE178876T1 (en) |
AU (1) | AU700893B2 (en) |
CA (1) | CA2221040C (en) |
CZ (1) | CZ290071B6 (en) |
DE (2) | DE19521502A1 (en) |
EA (1) | EA000431B1 (en) |
ES (1) | ES2130832T3 (en) |
MX (1) | MX9708721A (en) |
MY (1) | MY113911A (en) |
NZ (1) | NZ310988A (en) |
PL (1) | PL184677B1 (en) |
SK (1) | SK282093B6 (en) |
TW (1) | TW408093B (en) |
UA (1) | UA28102C2 (en) |
WO (1) | WO1996041779A1 (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002071086A1 (en) * | 2001-03-05 | 2002-09-12 | Specialty Fertilizer Products, Llc | Anionic polymers composed of dicarboxylic acids and uses thereof |
US6596831B2 (en) * | 2000-05-01 | 2003-07-22 | John Larry Sanders | Anionic vinyl/dicarboxylic acid polymers and uses thereof |
US20040226331A1 (en) * | 2001-03-05 | 2004-11-18 | Sanders John Larry | Anionic polymers composed of dicarboxylic acids and uses thereof |
US6841515B2 (en) | 2001-01-22 | 2005-01-11 | Unified Enviromental Services Group, L.L.C. | Production and use of biosolid granules |
US20070072775A1 (en) * | 2005-09-29 | 2007-03-29 | Oms Investments, Inc. | Granular controlled release agrochemical compositions and process for the preparation thereof |
US20080230484A1 (en) * | 2007-02-16 | 2008-09-25 | Burnham Jeffrey C | Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer |
US7686863B1 (en) | 2009-10-05 | 2010-03-30 | Specialty Fertilizer Products, Llc | Gypsum fertilizer products with polymer adjuvants |
US20100139345A1 (en) * | 2005-09-15 | 2010-06-10 | Burnham Jeffrey C | Organic fertilizer made by alkaline conversion process |
US20100139346A1 (en) * | 2005-03-09 | 2010-06-10 | Burnham Jeffrey C | Beneficiated, heat-dried biosolid pellets |
US20100170314A1 (en) * | 2007-04-25 | 2010-07-08 | Mark Goodwin | Use of Acidifying Agent for Promoting Micronutrient Uptake |
US20100175444A1 (en) * | 2009-01-09 | 2010-07-15 | Specialty Fertilizer Products, Llc | Quick drying polymeric fertilizer additive |
US20110079061A1 (en) * | 2009-10-05 | 2011-04-07 | Specialty Fertilizer Products, Llc | Enhanced fertilizer products with polymer adjuvants |
US20110154873A1 (en) * | 2009-12-30 | 2011-06-30 | Vitag Corporation | Bioorganically-augmented high value fertilizer |
US20110214465A1 (en) * | 2010-03-03 | 2011-09-08 | Lawrence Alan Peacock | Fertilizer composition containing micronutrients and methods of making same |
WO2011146026A2 (en) | 2010-05-18 | 2011-11-24 | Duslo, A.S. | Granular fertilizer with controlled release of nutrients |
WO2011146027A2 (en) | 2010-05-18 | 2011-11-24 | Duslo, A.S. | Granular fertilizer with controlled release of nutrients |
US8105413B2 (en) | 2005-02-23 | 2012-01-31 | Vitag Corporation | Manufacturing of bioorganic-augmented high nitrogen-containing inorganic fertilizer |
US8992654B2 (en) | 2011-03-28 | 2015-03-31 | Vitag Corporation | High value organic-enhanced inorganic fertilizers |
US9695092B2 (en) | 2006-02-23 | 2017-07-04 | Anuvia Plant Nutrients Corporation | Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer |
US9738565B2 (en) | 2012-08-13 | 2017-08-22 | Verdesian Life Sciences, Llc | Method of reducing atmospheric ammonia in livestock and poultry containment facilities |
WO2017198588A1 (en) * | 2016-05-18 | 2017-11-23 | Basf Se | Capsules comprising benzylpropargylethers for use as nitrification inhibitors |
US9856178B2 (en) | 2015-06-05 | 2018-01-02 | Anuvia Plant Nutrients Corporation | High value organic containing fertilizers and methods of manufacture |
US9961922B2 (en) | 2012-10-15 | 2018-05-08 | Verdesian Life Sciences, Llc | Animal feed and/or water amendments for lowering ammonia concentrations in animal excrement |
US10059636B2 (en) | 2013-08-27 | 2018-08-28 | Verdesian Life Sciences, Llc | Pesticide product including polyanionic polymers |
WO2019153081A1 (en) | 2018-02-09 | 2019-08-15 | Rynan Technologies Pte Ltd | Smart release nitrogen-containing fertilizer granules |
US10519070B2 (en) | 2014-05-21 | 2019-12-31 | Verdesian Life Sciences U.S., Llc | Polymer soil treatment compositions including humic acids |
US10737988B2 (en) | 2013-09-05 | 2020-08-11 | Verdasian Life Sciences U.S., LLC | Polymer-boric acid compositions |
US10822487B2 (en) | 2014-05-22 | 2020-11-03 | Verdesian Life Sciences Llc | Polymeric compositions |
US10870609B2 (en) | 2018-08-16 | 2020-12-22 | Anuvia Plant Nutrients Corporation | Reactive inorganic coatings for agricultural fertilizers |
US11254620B2 (en) | 2013-08-05 | 2022-02-22 | Verdesian Life Sciences U.S., Llc | Micronutrient-enhanced polymeric seed coatings |
US11591275B2 (en) | 2018-02-09 | 2023-02-28 | Rynan Technologies Pte Ltd | Smart release potash fertilizer granules |
US11999670B2 (en) | 2018-11-14 | 2024-06-04 | Profile Products Llc | Delivery of bioactive molecules in coatings or surface layers of organically enhanced inorganic fertilizers |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19640269A1 (en) | 1996-09-30 | 1998-04-02 | Basf Ag | Use of an aqueous dispersion of a biodegradable polyester for coating fertilizer granules |
UA74575C2 (en) * | 2000-05-01 | 2006-01-16 | Sanders John Larry | Anionic polymers based on vinyl and dicarboxylic acid, methods for obtaining thereof (variants), a composition based thereon and methods for enhancement of plants growth with their use |
DE10126360C1 (en) | 2001-05-30 | 2003-05-15 | Ashland Suedchemie Kernfest | Coated granular material and process for its manufacture |
DE10221704A1 (en) | 2001-06-05 | 2003-01-23 | Compo Gmbh & Co Kg | Solid agrochemical formulation, especially granular fertilizer, having slow-release coating obtained by applying dispersion of polymer having urethane and urea groups |
KR100463313B1 (en) * | 2002-02-22 | 2004-12-23 | 배석찬 | A method for preparing super adsorbent resin fertilizers |
US20090217723A1 (en) * | 2008-03-03 | 2009-09-03 | Specialty Fertilizer Products | Dual salt fertilizer giving enhanced crop yields |
MX340238B (en) * | 2010-10-18 | 2016-07-01 | Tiger-Sul Products Llc * | Coated fertilizer particles. |
KR101331454B1 (en) * | 2013-08-07 | 2013-11-26 | 수산고분자 주식회사 | Slow released fertilizer and preparation method thereof |
KR101410859B1 (en) * | 2013-10-14 | 2014-07-01 | (주) 포스텍글로벌 | Coated Granule Fertilizer Preventing Floating in Water and Manufacturing Method thereof |
DE102015004670A1 (en) | 2015-04-13 | 2016-10-13 | Ask Chemicals Gmbh | Coated granular substance |
US10519072B2 (en) | 2017-02-23 | 2019-12-31 | Produquímica Indústria E Comércio S.A. | Multi-nutrient granular fertilizer compositions and methods of using the same |
DE102021005190A1 (en) | 2021-10-18 | 2023-04-20 | Ask Chemicals Gmbh | PROCESS FOR COATING A GRANULAR FABRIC, COATED GRANULAR FABRIC AND KIT |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177269A (en) * | 1960-10-10 | 1965-04-06 | Dow Chemical Co | Graft copolymers of polyolefins and acrylic and methacrylic acid and method of making the same |
US3520861A (en) * | 1968-12-26 | 1970-07-21 | Dow Chemical Co | Copolymers of ethylene |
US3886125A (en) * | 1972-05-12 | 1975-05-27 | Airwick Ind | Polymer Complexes |
US4248990A (en) * | 1979-04-05 | 1981-02-03 | E. I. Du Pont De Nemours & Company | Nonrandom copolymers of ethylene and unsaturated acid |
US4252924A (en) * | 1979-04-05 | 1981-02-24 | E. I. Du Pont De Nemours And Company | Continuous process for the preparation of nonrandom ethylene/acid copolymer |
US4599392A (en) * | 1983-06-13 | 1986-07-08 | The Dow Chemical Company | Interpolymers of ethylene and unsaturated carboxylic acids |
EP0224990A1 (en) | 1985-10-29 | 1987-06-10 | Kuwait Institute For Scientific Research | Degradable agricultural mulch film |
US4851027A (en) | 1987-02-19 | 1989-07-25 | Kyowa Hakko Kogyo, Co. Ltd. | Gradually effective, coated fertilizer |
EP0337298A1 (en) | 1988-04-06 | 1989-10-18 | Sumitomo Chemical Company, Limited | Coated granular fertilizer composition and its production |
WO1992014690A1 (en) | 1991-02-14 | 1992-09-03 | The O.M. Scott & Sons Company | Abrasion resistant coatings for fertilizers |
US5188654A (en) * | 1991-03-28 | 1993-02-23 | Exxon Research And Engineering Company | Coatings with ionically and covalently crosslinked neutralized carboxylated polymers |
US5206279A (en) * | 1991-01-25 | 1993-04-27 | The Dow Chemical Company | Method of preparing aqueous dispersions of ethylene/α,β-unsaturated carboxylic acid interpolymers |
JPH0748194A (en) | 1993-08-04 | 1995-02-21 | Chisso Corp | Granular fertilizer coated with degradable film |
DE4343176A1 (en) | 1993-12-17 | 1995-06-22 | Basf Ag | Fungicidal mixture |
US5466274A (en) * | 1991-02-14 | 1995-11-14 | Oms Investments, Inc. | Abrasion resistant coatings for fertilizers |
US5746812A (en) * | 1993-09-08 | 1998-05-05 | Basf Aktiengesellschaft | Stable aqueous polyolefin wax dispersions |
US5880233A (en) * | 1996-11-18 | 1999-03-09 | Basf Aktiengesellschaft | Process for the preparation of ethylene/(meth)acrylic acid copolymers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07169887A (en) | 1993-12-16 | 1995-07-04 | Nec Corp | Ic case fitted with heat sink |
-
1995
- 1995-06-13 DE DE19521502A patent/DE19521502A1/en not_active Withdrawn
-
1996
- 1996-06-03 WO PCT/EP1996/002390 patent/WO1996041779A1/en active IP Right Grant
- 1996-06-03 DE DE59601671T patent/DE59601671D1/en not_active Expired - Lifetime
- 1996-06-03 SK SK1553-97A patent/SK282093B6/en unknown
- 1996-06-03 KR KR1019970709349A patent/KR100426922B1/en not_active IP Right Cessation
- 1996-06-03 CZ CZ19973572A patent/CZ290071B6/en not_active IP Right Cessation
- 1996-06-03 PL PL96324008A patent/PL184677B1/en not_active IP Right Cessation
- 1996-06-03 AT AT96920774T patent/ATE178876T1/en not_active IP Right Cessation
- 1996-06-03 CN CN96194738A patent/CN1100027C/en not_active Expired - Fee Related
- 1996-06-03 MX MX9708721A patent/MX9708721A/en unknown
- 1996-06-03 EA EA199800054A patent/EA000431B1/en not_active IP Right Cessation
- 1996-06-03 EP EP96920774A patent/EP0832053B1/en not_active Expired - Lifetime
- 1996-06-03 CA CA002221040A patent/CA2221040C/en not_active Expired - Fee Related
- 1996-06-03 ES ES96920774T patent/ES2130832T3/en not_active Expired - Lifetime
- 1996-06-03 UA UA98010156A patent/UA28102C2/en unknown
- 1996-06-03 JP JP9502568A patent/JPH11507617A/en not_active Ceased
- 1996-06-03 AU AU62209/96A patent/AU700893B2/en not_active Ceased
- 1996-06-03 US US08/973,463 patent/US6187074B1/en not_active Expired - Fee Related
- 1996-06-03 NZ NZ310988A patent/NZ310988A/en unknown
- 1996-06-08 TW TW085106909A patent/TW408093B/en not_active IP Right Cessation
- 1996-06-10 MY MYPI96002336A patent/MY113911A/en unknown
-
2000
- 2000-09-15 US US09/662,634 patent/US6309439B1/en not_active Expired - Lifetime
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177269A (en) * | 1960-10-10 | 1965-04-06 | Dow Chemical Co | Graft copolymers of polyolefins and acrylic and methacrylic acid and method of making the same |
US3520861A (en) * | 1968-12-26 | 1970-07-21 | Dow Chemical Co | Copolymers of ethylene |
US3886125A (en) * | 1972-05-12 | 1975-05-27 | Airwick Ind | Polymer Complexes |
US4248990A (en) * | 1979-04-05 | 1981-02-03 | E. I. Du Pont De Nemours & Company | Nonrandom copolymers of ethylene and unsaturated acid |
US4252924A (en) * | 1979-04-05 | 1981-02-24 | E. I. Du Pont De Nemours And Company | Continuous process for the preparation of nonrandom ethylene/acid copolymer |
US4599392A (en) * | 1983-06-13 | 1986-07-08 | The Dow Chemical Company | Interpolymers of ethylene and unsaturated carboxylic acids |
EP0224990A1 (en) | 1985-10-29 | 1987-06-10 | Kuwait Institute For Scientific Research | Degradable agricultural mulch film |
US4851027A (en) | 1987-02-19 | 1989-07-25 | Kyowa Hakko Kogyo, Co. Ltd. | Gradually effective, coated fertilizer |
EP0337298A1 (en) | 1988-04-06 | 1989-10-18 | Sumitomo Chemical Company, Limited | Coated granular fertilizer composition and its production |
US5206279A (en) * | 1991-01-25 | 1993-04-27 | The Dow Chemical Company | Method of preparing aqueous dispersions of ethylene/α,β-unsaturated carboxylic acid interpolymers |
WO1992014690A1 (en) | 1991-02-14 | 1992-09-03 | The O.M. Scott & Sons Company | Abrasion resistant coatings for fertilizers |
US5466274A (en) * | 1991-02-14 | 1995-11-14 | Oms Investments, Inc. | Abrasion resistant coatings for fertilizers |
US5188654A (en) * | 1991-03-28 | 1993-02-23 | Exxon Research And Engineering Company | Coatings with ionically and covalently crosslinked neutralized carboxylated polymers |
JPH0748194A (en) | 1993-08-04 | 1995-02-21 | Chisso Corp | Granular fertilizer coated with degradable film |
US5746812A (en) * | 1993-09-08 | 1998-05-05 | Basf Aktiengesellschaft | Stable aqueous polyolefin wax dispersions |
DE4343176A1 (en) | 1993-12-17 | 1995-06-22 | Basf Ag | Fungicidal mixture |
US5880233A (en) * | 1996-11-18 | 1999-03-09 | Basf Aktiengesellschaft | Process for the preparation of ethylene/(meth)acrylic acid copolymers |
Non-Patent Citations (3)
Title |
---|
A. Shaviv & R.L. Mikkelsen (1993). Controlled-release fertilizers to increase efficiency of nutrient use and minimize environmental degradation-A review. Fertilizer Research vol. 35, pp. 1-12. |
Database WPT, Section Ch, Week 9517, Derwent Publication Ltd. London GB; Class A17, AN 95-126054, XP002013280. |
W. Gerhartz, Y. Yamamoto, et al (1987). Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition vol. A10, pp. 363-369. |
Cited By (73)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6596831B2 (en) * | 2000-05-01 | 2003-07-22 | John Larry Sanders | Anionic vinyl/dicarboxylic acid polymers and uses thereof |
US6841515B2 (en) | 2001-01-22 | 2005-01-11 | Unified Enviromental Services Group, L.L.C. | Production and use of biosolid granules |
US20030194492A1 (en) * | 2001-03-05 | 2003-10-16 | Specialty Fertilizer Products, Llc | Anionic polymers composed of dicarboxylic acids and uses thereof |
US6756461B2 (en) * | 2001-03-05 | 2004-06-29 | Specialty Fertilizer Products, Llc | Anionic polymers composed of dicarboxylic acids and uses thereof |
US6818039B2 (en) * | 2001-03-05 | 2004-11-16 | Specialty Fertilizer Products, Llc | Anionic polymers composed of dicarboxylic acids and uses thereof |
US20040226331A1 (en) * | 2001-03-05 | 2004-11-18 | Sanders John Larry | Anionic polymers composed of dicarboxylic acids and uses thereof |
US20040234755A1 (en) * | 2001-03-05 | 2004-11-25 | Sanders John Larry | Anionic polymers composed of dicarboxylic acids and uses thereof |
US20040234684A1 (en) * | 2001-03-05 | 2004-11-25 | Sanders John Larry | Anionic polymers composed of dicarboxylic acids and uses thereof |
US20030126901A1 (en) * | 2001-03-05 | 2003-07-10 | Sanders John Larry | Anionic polymers composed of dicarboxylic acids and uses thereof |
US20060147623A1 (en) * | 2001-03-05 | 2006-07-06 | Sanders John L | Anionic polymers composed of dicarboxylic acids and uses thereof |
WO2002071086A1 (en) * | 2001-03-05 | 2002-09-12 | Specialty Fertilizer Products, Llc | Anionic polymers composed of dicarboxylic acids and uses thereof |
US8105413B2 (en) | 2005-02-23 | 2012-01-31 | Vitag Corporation | Manufacturing of bioorganic-augmented high nitrogen-containing inorganic fertilizer |
US8470065B1 (en) | 2005-02-23 | 2013-06-25 | Vitag Corporation | Manufacturing of bioorganic-augmented high nitrogen-containing inorganic fertilizer |
US20100139346A1 (en) * | 2005-03-09 | 2010-06-10 | Burnham Jeffrey C | Beneficiated, heat-dried biosolid pellets |
US8192519B2 (en) | 2005-03-09 | 2012-06-05 | Vitag Corporation | Beneficiated, heat-dried biosolid pellets |
US9233882B2 (en) | 2005-09-15 | 2016-01-12 | Anuvia Plant Nutrients Corporation | Organic containing sludge to fertilizer alkaline conversion process |
US8597394B2 (en) | 2005-09-15 | 2013-12-03 | Vitag Corporation | Organic containing sludge to fertilizer alkaline conversion process |
US8202342B2 (en) | 2005-09-15 | 2012-06-19 | Vitag Corporation | Organic containing sludge to fertilizer alkaline conversion process |
US8491693B2 (en) | 2005-09-15 | 2013-07-23 | Vitag Corporation | Process to beneficiate heat-dried biosolid pellets |
US20100139345A1 (en) * | 2005-09-15 | 2010-06-10 | Burnham Jeffrey C | Organic fertilizer made by alkaline conversion process |
US8864868B2 (en) | 2005-09-15 | 2014-10-21 | Vitag Corporation | Organic containing sludge to fertilizer alkaline conversion process |
US7947105B2 (en) | 2005-09-15 | 2011-05-24 | Vitag Corp. | Organic fertilizer made by alkaline conversion process |
US20110111956A1 (en) * | 2005-09-29 | 2011-05-12 | Oms Investments, Inc. | Granular Controlled Release Agrochemical Compositions and Process for the Preparation Thereof |
US9012363B2 (en) | 2005-09-29 | 2015-04-21 | Everris International B.V. | Granular controlled release agrochemical compositions and process for the preparation thereof |
US8497229B2 (en) | 2005-09-29 | 2013-07-30 | Everris International B.V. | Granular controlled release agrochemical compositions and process for the preparation thereof |
EP2545775A2 (en) | 2005-09-29 | 2013-01-16 | Everris International B.V. | Granular controlled release agrochemical compositions and process for the preparation thereof |
US20070072775A1 (en) * | 2005-09-29 | 2007-03-29 | Oms Investments, Inc. | Granular controlled release agrochemical compositions and process for the preparation thereof |
US9695092B2 (en) | 2006-02-23 | 2017-07-04 | Anuvia Plant Nutrients Corporation | Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer |
US7947104B2 (en) | 2007-02-16 | 2011-05-24 | Vitag Corp. | Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer |
US20080230484A1 (en) * | 2007-02-16 | 2008-09-25 | Burnham Jeffrey C | Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer |
US8221515B2 (en) * | 2007-04-25 | 2012-07-17 | Wolf Trax Inc. | Use of acidifying agent for promoting micronutrient uptake |
US20100170314A1 (en) * | 2007-04-25 | 2010-07-08 | Mark Goodwin | Use of Acidifying Agent for Promoting Micronutrient Uptake |
US20100175444A1 (en) * | 2009-01-09 | 2010-07-15 | Specialty Fertilizer Products, Llc | Quick drying polymeric fertilizer additive |
US20100175442A1 (en) * | 2009-01-09 | 2010-07-15 | Specialty Fertilizer Products, Llc | Quick drying polymeric coating |
US8025709B2 (en) | 2009-01-09 | 2011-09-27 | Specialty Feritlizer Products, LLC | Quick drying polymeric coating |
US8016907B2 (en) | 2009-01-09 | 2011-09-13 | Specialty Fertilizer Products, Llc | Quick drying polymeric coating |
US10336659B2 (en) | 2009-01-09 | 2019-07-02 | Verdesian Life Sciences, Llc | Quick drying polymeric coating |
US7736412B1 (en) | 2009-10-05 | 2010-06-15 | Specialty Fertilizer Products, Llc | Gypsum fertilizer products with polymer adjuvants |
US8192520B2 (en) | 2009-10-05 | 2012-06-05 | Specialty Fertilizer Products, Llc | Enhanced fertilizer products with polymer adjuvants |
US7686863B1 (en) | 2009-10-05 | 2010-03-30 | Specialty Fertilizer Products, Llc | Gypsum fertilizer products with polymer adjuvants |
US20110079061A1 (en) * | 2009-10-05 | 2011-04-07 | Specialty Fertilizer Products, Llc | Enhanced fertilizer products with polymer adjuvants |
US9586869B1 (en) | 2009-12-30 | 2017-03-07 | Anuvia Plant Nutrients Corporation | Bioorganically-augmented high value fertilizer |
US20110154873A1 (en) * | 2009-12-30 | 2011-06-30 | Vitag Corporation | Bioorganically-augmented high value fertilizer |
US8557013B2 (en) | 2009-12-30 | 2013-10-15 | Vitag Holdings, Llc | Bioorganically-augmented high value fertilizer |
US9328030B2 (en) | 2009-12-30 | 2016-05-03 | Anuvia Plant Nutrients Corporation | Bioorganically-augmented high value fertilizer |
US8920733B2 (en) | 2009-12-30 | 2014-12-30 | Vitag Corporation | Bioorganically-augmented high value fertilizer |
RU2520337C1 (en) * | 2010-03-03 | 2014-06-20 | Мос Холдингз Инк. | Composition of fertiliser containing micronutrients, and method of its production |
US9199883B2 (en) | 2010-03-03 | 2015-12-01 | The Mosaic Company | Fertilizer composition containing micronutrients and methods of making same |
AU2011221469B2 (en) * | 2010-03-03 | 2014-06-05 | Mos Holdings Inc. | Fertilizer composition containing micronutrients and methods of making same |
US20110214465A1 (en) * | 2010-03-03 | 2011-09-08 | Lawrence Alan Peacock | Fertilizer composition containing micronutrients and methods of making same |
WO2011109202A3 (en) * | 2010-03-03 | 2011-12-29 | The Mosaic Company | Fertilizer composition containing micronutrients and methods of making same |
WO2011146026A2 (en) | 2010-05-18 | 2011-11-24 | Duslo, A.S. | Granular fertilizer with controlled release of nutrients |
WO2011146027A2 (en) | 2010-05-18 | 2011-11-24 | Duslo, A.S. | Granular fertilizer with controlled release of nutrients |
US8992654B2 (en) | 2011-03-28 | 2015-03-31 | Vitag Corporation | High value organic-enhanced inorganic fertilizers |
US9738565B2 (en) | 2012-08-13 | 2017-08-22 | Verdesian Life Sciences, Llc | Method of reducing atmospheric ammonia in livestock and poultry containment facilities |
US9961922B2 (en) | 2012-10-15 | 2018-05-08 | Verdesian Life Sciences, Llc | Animal feed and/or water amendments for lowering ammonia concentrations in animal excrement |
US11254620B2 (en) | 2013-08-05 | 2022-02-22 | Verdesian Life Sciences U.S., Llc | Micronutrient-enhanced polymeric seed coatings |
US10059636B2 (en) | 2013-08-27 | 2018-08-28 | Verdesian Life Sciences, Llc | Pesticide product including polyanionic polymers |
US10065896B2 (en) | 2013-08-27 | 2018-09-04 | Verdesian Life Sciences, Llc | Seed product having polyanionic polymers |
US10173941B2 (en) | 2013-08-27 | 2019-01-08 | Verdesian Life Sciences, Llc | Fertilizers with polyanionic polymers and method of applying polyanionic polymer to plants |
US10377680B2 (en) | 2013-08-27 | 2019-08-13 | Verdesian Life Sciences, Llc | Polyanionic polymers |
US10737988B2 (en) | 2013-09-05 | 2020-08-11 | Verdasian Life Sciences U.S., LLC | Polymer-boric acid compositions |
US10519070B2 (en) | 2014-05-21 | 2019-12-31 | Verdesian Life Sciences U.S., Llc | Polymer soil treatment compositions including humic acids |
US10822487B2 (en) | 2014-05-22 | 2020-11-03 | Verdesian Life Sciences Llc | Polymeric compositions |
US9856178B2 (en) | 2015-06-05 | 2018-01-02 | Anuvia Plant Nutrients Corporation | High value organic containing fertilizers and methods of manufacture |
CN109476561A (en) * | 2016-05-18 | 2019-03-15 | 巴斯夫欧洲公司 | Capsule comprising being used as the benzyl propargyl ether of nitrification inhibitor |
WO2017198588A1 (en) * | 2016-05-18 | 2017-11-23 | Basf Se | Capsules comprising benzylpropargylethers for use as nitrification inhibitors |
WO2019153081A1 (en) | 2018-02-09 | 2019-08-15 | Rynan Technologies Pte Ltd | Smart release nitrogen-containing fertilizer granules |
US11591275B2 (en) | 2018-02-09 | 2023-02-28 | Rynan Technologies Pte Ltd | Smart release potash fertilizer granules |
US11649195B2 (en) | 2018-02-09 | 2023-05-16 | Rynan Technologies Pte Ltd. | Smart release nitrogen-containing fertilizer granules |
US10870609B2 (en) | 2018-08-16 | 2020-12-22 | Anuvia Plant Nutrients Corporation | Reactive inorganic coatings for agricultural fertilizers |
US11542213B2 (en) | 2018-08-16 | 2023-01-03 | Anuvia Plant Nutrients IP Holdings, LLC | Reactive inorganic coatings for agricultural fertilizers |
US11999670B2 (en) | 2018-11-14 | 2024-06-04 | Profile Products Llc | Delivery of bioactive molecules in coatings or surface layers of organically enhanced inorganic fertilizers |
Also Published As
Publication number | Publication date |
---|---|
CA2221040A1 (en) | 1996-12-27 |
CZ290071B6 (en) | 2002-05-15 |
SK282093B6 (en) | 2001-11-06 |
EP0832053B1 (en) | 1999-04-14 |
DE19521502A1 (en) | 1996-12-19 |
ES2130832T3 (en) | 1999-07-01 |
EA199800054A1 (en) | 1998-08-27 |
PL184677B1 (en) | 2002-11-29 |
PL324008A1 (en) | 1998-04-27 |
AU6220996A (en) | 1997-01-09 |
UA28102C2 (en) | 2000-10-16 |
TW408093B (en) | 2000-10-11 |
SK155397A3 (en) | 1998-09-09 |
CA2221040C (en) | 2004-08-24 |
EA000431B1 (en) | 1999-08-26 |
AU700893B2 (en) | 1999-01-14 |
DE59601671D1 (en) | 1999-05-20 |
MX9708721A (en) | 1997-12-31 |
CZ357297A3 (en) | 1998-07-15 |
CN1100027C (en) | 2003-01-29 |
US6309439B1 (en) | 2001-10-30 |
NZ310988A (en) | 1998-12-23 |
JPH11507617A (en) | 1999-07-06 |
ATE178876T1 (en) | 1999-04-15 |
CN1187806A (en) | 1998-07-15 |
MY113911A (en) | 2002-06-29 |
WO1996041779A1 (en) | 1996-12-27 |
KR19990022880A (en) | 1999-03-25 |
KR100426922B1 (en) | 2004-06-26 |
EP0832053A1 (en) | 1998-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6187074B1 (en) | Coated fertilizer granules | |
US6287359B1 (en) | Granule mixtures composed of coated and non-coated fertilizer granules | |
CA2479614C (en) | Slow release nitrogen fertilizer | |
CN108456121A (en) | A kind of nucleocapsid slow-release or control-release fertilizer and preparation method thereof | |
EP0706503A1 (en) | Abrasion resistant coatings for fertilizers | |
US5264019A (en) | Coating compositions for slow release fertilizer formulations | |
US5133797A (en) | Coated granular fertilizer composition and its production | |
JPH03237083A (en) | Neutral solid fertilizer | |
CN100575317C (en) | High-nitrogen slow released agglomeration resistant compound fertilizer and production method thereof | |
JPH0466839B2 (en) | ||
JPH07206565A (en) | Coated granular fertilizer containing minor element | |
JPH09286685A (en) | Production of coated granular fertilizer | |
JPH11347477A (en) | Coating method | |
JPH1160369A (en) | Coated granular fertilizer and its production | |
ZA200407493B (en) | Slow release nitrogen fertilizer | |
HUT74365A (en) | Fertilizer compositions consisisting of abrasion resistant topcoated granules and process for producing thereof | |
HU201508B (en) | Process for freeing of acid influence of fertelizer and assuring of regulated deposition of the active substance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BASF AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VON LOCQUENGHIEN, KLAUS HORCHLER;ENGELHARDT, KARL;KLEINBACH, EBERHARD;AND OTHERS;REEL/FRAME:009381/0809 Effective date: 19960618 |
|
AS | Assignment |
Owner name: K + S AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BASF AKTIENGESELLSCHAFT;REEL/FRAME:010817/0623 Effective date: 20000217 |
|
CC | Certificate of correction | ||
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20090213 |